Eye and facial-disc hierarchy
An owl reads first as two forward eyes inside a facial disc, with ear tufts, beak, and body as second-read cues. Barn owls carry a heart-shaped disc, great horned owls carry brow-heavy tufts over round eyes, and snowy owls carry dense barring around a pale face. Stencil viability comes from one clean disc boundary plus two separated eyes before any feather texture, because photo reference shows radiating disc feathers, catchlights, and iris rings that merge into one dark patch at transfer size.
Check: Cover every wing and chest feather. If the two eyes plus the disc boundary still read as owl on their own at a glance, the hierarchy is sound. If removing texture leaves a generic bird face, lock eye separation and disc shape before touching feather detail.
